I did a 20% water change yesterday with TM Pro Reef that I forgot to buffer ahead of time. My tank’s alkalinity dropped from 7.9 yesterday to 7.3 today. It’s normally 8. This morning I noticed two of my fish flashing a little bit, but they were quarantined and have no signs of ich or disease in general. I’m tempted to point the finger at the drop in alkalinity, but wanted to consult others who may have experienced something similar. Can the water change with lower alk water cause flashing in your fish?